Home / 157,744.16-217,680.72-86,127.20

Finding the Fourth Proportional to 157,744.16, 217,680.72 and 86,127.20

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Solution

The fourth proportional to 157,744.16, 217,680.72 and 86,127.20 is: 118,852.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,744.16 : 217,680.72 = 86,127.20 : x
  2. Step 2: Convert to fraction form
    157,744.16/217,680.72 = 86,127.20/x
  3. Step 3: Cross multiply
    157,744.16x = 217,680.72 × 86,127.20
  4. Step 4: Simplify right side
    157,744.16x = 18,748,230,907.58
  5. Step 5: Solve for x
    x = 18,748,230,907.58/157,744.16
  6. Step 6: Final answer
    x = 118,852.14

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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.