Home / 103,160.16-142,356.96-58,448.16

Finding the Fourth Proportional to 103,160.16, 142,356.96 and 58,448.16

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Solution

The fourth proportional to 103,160.16, 142,356.96 and 58,448.16 is: 80,656.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,160.16 : 142,356.96 = 58,448.16 : x
  2. Step 2: Convert to fraction form
    103,160.16/142,356.96 = 58,448.16/x
  3. Step 3: Cross multiply
    103,160.16x = 142,356.96 × 58,448.16
  4. Step 4: Simplify right side
    103,160.16x = 8,320,502,375.19
  5. Step 5: Solve for x
    x = 8,320,502,375.19/103,160.16
  6. Step 6: Final answer
    x = 80,656.16

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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.