Home / 128,316.17-192,499.88-39,566.30

Finding the Fourth Proportional to 128,316.17, 192,499.88 and 39,566.30

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Solution

The fourth proportional to 128,316.17, 192,499.88 and 39,566.30 is: 59,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,316.17 : 192,499.88 = 39,566.30 : x
  2. Step 2: Convert to fraction form
    128,316.17/192,499.88 = 39,566.30/x
  3. Step 3: Cross multiply
    128,316.17x = 192,499.88 × 39,566.30
  4. Step 4: Simplify right side
    128,316.17x = 7,616,506,841.71
  5. Step 5: Solve for x
    x = 7,616,506,841.71/128,316.17
  6. Step 6: Final answer
    x = 59,357.34

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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.