Home / 145,122,291.90-200,261,204.55-90,116,976.06

Finding the Fourth Proportional to 145,122,291.90, 200,261,204.55 and 90,116,976.06

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Solution

The fourth proportional to 145,122,291.90, 200,261,204.55 and 90,116,976.06 is: 124,356,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,122,291.90 : 200,261,204.55 = 90,116,976.06 : x
  2. Step 2: Convert to fraction form
    145,122,291.90/200,261,204.55 = 90,116,976.06/x
  3. Step 3: Cross multiply
    145,122,291.90x = 200,261,204.55 × 90,116,976.06
  4. Step 4: Simplify right side
    145,122,291.90x = 18,046,934,176,179,116
  5. Step 5: Solve for x
    x = 18,046,934,176,179,116/145,122,291.90
  6. Step 6: Final answer
    x = 124,356,733.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.