Home / 105,077.80-145,001.64-59,749.66

Finding the Fourth Proportional to 105,077.80, 145,001.64 and 59,749.66

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Solution

The fourth proportional to 105,077.80, 145,001.64 and 59,749.66 is: 82,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,077.80 : 145,001.64 = 59,749.66 : x
  2. Step 2: Convert to fraction form
    105,077.80/145,001.64 = 59,749.66/x
  3. Step 3: Cross multiply
    105,077.80x = 145,001.64 × 59,749.66
  4. Step 4: Simplify right side
    105,077.80x = 8,663,798,689.44
  5. Step 5: Solve for x
    x = 8,663,798,689.44/105,077.80
  6. Step 6: Final answer
    x = 82,451.28

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1.5x scale

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.