Home / 103,531.04-142,683.36-75,187.52

Finding the Fourth Proportional to 103,531.04, 142,683.36 and 75,187.52

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Solution

The fourth proportional to 103,531.04, 142,683.36 and 75,187.52 is: 103,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,531.04 : 142,683.36 = 75,187.52 : x
  2. Step 2: Convert to fraction form
    103,531.04/142,683.36 = 75,187.52/x
  3. Step 3: Cross multiply
    103,531.04x = 142,683.36 × 75,187.52
  4. Step 4: Simplify right side
    103,531.04x = 10,728,007,983.67
  5. Step 5: Solve for x
    x = 10,728,007,983.67/103,531.04
  6. Step 6: Final answer
    x = 103,621.17

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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.