Home / 159,280.16-219,802.20-90,382.17

Finding the Fourth Proportional to 159,280.16, 219,802.20 and 90,382.17

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Solution

The fourth proportional to 159,280.16, 219,802.20 and 90,382.17 is: 124,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,280.16 : 219,802.20 = 90,382.17 : x
  2. Step 2: Convert to fraction form
    159,280.16/219,802.20 = 90,382.17/x
  3. Step 3: Cross multiply
    159,280.16x = 219,802.20 × 90,382.17
  4. Step 4: Simplify right side
    159,280.16x = 19,866,199,806.77
  5. Step 5: Solve for x
    x = 19,866,199,806.77/159,280.16
  6. Step 6: Final answer
    x = 124,724.89

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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.