Home / 159,432.04-220,016.10-87,810.28

Finding the Fourth Proportional to 159,432.04, 220,016.10 and 87,810.28

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Solution

The fourth proportional to 159,432.04, 220,016.10 and 87,810.28 is: 121,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,432.04 : 220,016.10 = 87,810.28 : x
  2. Step 2: Convert to fraction form
    159,432.04/220,016.10 = 87,810.28/x
  3. Step 3: Cross multiply
    159,432.04x = 220,016.10 × 87,810.28
  4. Step 4: Simplify right side
    159,432.04x = 19,319,675,345.51
  5. Step 5: Solve for x
    x = 19,319,675,345.51/159,432.04
  6. Step 6: Final answer
    x = 121,178.12

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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.