Home / 157,736.72-217,677-86,116.76

Finding the Fourth Proportional to 157,736.72, 217,677 and 86,116.76

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Solution

The fourth proportional to 157,736.72, 217,677 and 86,116.76 is: 118,841.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,736.72 : 217,677 = 86,116.76 : x
  2. Step 2: Convert to fraction form
    157,736.72/217,677 = 86,116.76/x
  3. Step 3: Cross multiply
    157,736.72x = 217,677 × 86,116.76
  4. Step 4: Simplify right side
    157,736.72x = 18,745,637,966.52
  5. Step 5: Solve for x
    x = 18,745,637,966.52/157,736.72
  6. Step 6: Final answer
    x = 118,841.31

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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.