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Finding the Fourth Proportional to 109,932, 151,688.88 and 62,170.08

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Solution

The fourth proportional to 109,932, 151,688.88 and 62,170.08 is: 85,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,932 : 151,688.88 = 62,170.08 : x
  2. Step 2: Convert to fraction form
    109,932/151,688.88 = 62,170.08/x
  3. Step 3: Cross multiply
    109,932x = 151,688.88 × 62,170.08
  4. Step 4: Simplify right side
    109,932x = 9,430,509,804.71
  5. Step 5: Solve for x
    x = 9,430,509,804.71/109,932
  6. Step 6: Final answer
    x = 85,784.94

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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.