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Finding the Fourth Proportional to 128,551.95, 192,952.31 and 62,038.90

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Solution

The fourth proportional to 128,551.95, 192,952.31 and 62,038.90 is: 93,118.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,551.95 : 192,952.31 = 62,038.90 : x
  2. Step 2: Convert to fraction form
    128,551.95/192,952.31 = 62,038.90/x
  3. Step 3: Cross multiply
    128,551.95x = 192,952.31 × 62,038.90
  4. Step 4: Simplify right side
    128,551.95x = 11,970,549,064.86
  5. Step 5: Solve for x
    x = 11,970,549,064.86/128,551.95
  6. Step 6: Final answer
    x = 93,118.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.