Home / 209,084.76-288,516.15-118,422.63

Finding the Fourth Proportional to 209,084.76, 288,516.15 and 118,422.63

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Solution

The fourth proportional to 209,084.76, 288,516.15 and 118,422.63 is: 163,411.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,084.76 : 288,516.15 = 118,422.63 : x
  2. Step 2: Convert to fraction form
    209,084.76/288,516.15 = 118,422.63/x
  3. Step 3: Cross multiply
    209,084.76x = 288,516.15 × 118,422.63
  4. Step 4: Simplify right side
    209,084.76x = 34,166,841,280.47
  5. Step 5: Solve for x
    x = 34,166,841,280.47/209,084.76
  6. Step 6: Final answer
    x = 163,411.44

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Double scale
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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.