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Finding the Fourth Proportional to 159,320.59, 219,862.36 and 87,700.25

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Solution

The fourth proportional to 159,320.59, 219,862.36 and 87,700.25 is: 121,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,320.59 : 219,862.36 = 87,700.25 : x
  2. Step 2: Convert to fraction form
    159,320.59/219,862.36 = 87,700.25/x
  3. Step 3: Cross multiply
    159,320.59x = 219,862.36 × 87,700.25
  4. Step 4: Simplify right side
    159,320.59x = 19,281,983,937.59
  5. Step 5: Solve for x
    x = 19,281,983,937.59/159,320.59
  6. Step 6: Final answer
    x = 121,026.32

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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.