Home / 103,812.36-143,261.04-56,065.70

Finding the Fourth Proportional to 103,812.36, 143,261.04 and 56,065.70

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Solution

The fourth proportional to 103,812.36, 143,261.04 and 56,065.70 is: 77,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,812.36 : 143,261.04 = 56,065.70 : x
  2. Step 2: Convert to fraction form
    103,812.36/143,261.04 = 56,065.70/x
  3. Step 3: Cross multiply
    103,812.36x = 143,261.04 × 56,065.70
  4. Step 4: Simplify right side
    103,812.36x = 8,032,030,490.33
  5. Step 5: Solve for x
    x = 8,032,030,490.33/103,812.36
  6. Step 6: Final answer
    x = 77,370.66

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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.