Home / 105,431.60-145,477.14-62,446.52

Finding the Fourth Proportional to 105,431.60, 145,477.14 and 62,446.52

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Solution

The fourth proportional to 105,431.60, 145,477.14 and 62,446.52 is: 86,165.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,431.60 : 145,477.14 = 62,446.52 : x
  2. Step 2: Convert to fraction form
    105,431.60/145,477.14 = 62,446.52/x
  3. Step 3: Cross multiply
    105,431.60x = 145,477.14 × 62,446.52
  4. Step 4: Simplify right side
    105,431.60x = 9,084,541,132.55
  5. Step 5: Solve for x
    x = 9,084,541,132.55/105,431.60
  6. Step 6: Final answer
    x = 86,165.26

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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.