Home / 153,278.84-229,851.23-77,330.65

Finding the Fourth Proportional to 153,278.84, 229,851.23 and 77,330.65

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Solution

The fourth proportional to 153,278.84, 229,851.23 and 77,330.65 is: 115,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,278.84 : 229,851.23 = 77,330.65 : x
  2. Step 2: Convert to fraction form
    153,278.84/229,851.23 = 77,330.65/x
  3. Step 3: Cross multiply
    153,278.84x = 229,851.23 × 77,330.65
  4. Step 4: Simplify right side
    153,278.84x = 17,774,545,019.20
  5. Step 5: Solve for x
    x = 17,774,545,019.20/153,278.84
  6. Step 6: Final answer
    x = 115,962.16

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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.