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Finding the Fourth Proportional to 160,421.96, 240,869.50 and 89,483.20

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Solution

The fourth proportional to 160,421.96, 240,869.50 and 89,483.20 is: 134,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,421.96 : 240,869.50 = 89,483.20 : x
  2. Step 2: Convert to fraction form
    160,421.96/240,869.50 = 89,483.20/x
  3. Step 3: Cross multiply
    160,421.96x = 240,869.50 × 89,483.20
  4. Step 4: Simplify right side
    160,421.96x = 21,553,772,816.52
  5. Step 5: Solve for x
    x = 21,553,772,816.52/160,421.96
  6. Step 6: Final answer
    x = 134,356.75

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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.