Home / 127,518.65-191,278.13-47,555.40

Finding the Fourth Proportional to 127,518.65, 191,278.13 and 47,555.40

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Solution

The fourth proportional to 127,518.65, 191,278.13 and 47,555.40 is: 71,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,518.65 : 191,278.13 = 47,555.40 : x
  2. Step 2: Convert to fraction form
    127,518.65/191,278.13 = 47,555.40/x
  3. Step 3: Cross multiply
    127,518.65x = 191,278.13 × 47,555.40
  4. Step 4: Simplify right side
    127,518.65x = 9,096,308,864.17
  5. Step 5: Solve for x
    x = 9,096,308,864.17/127,518.65
  6. Step 6: Final answer
    x = 71,333.16

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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.