Home / 127,900.69-176,502.95-71,312.06

Finding the Fourth Proportional to 127,900.69, 176,502.95 and 71,312.06

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Solution

The fourth proportional to 127,900.69, 176,502.95 and 71,312.06 is: 98,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,900.69 : 176,502.95 = 71,312.06 : x
  2. Step 2: Convert to fraction form
    127,900.69/176,502.95 = 71,312.06/x
  3. Step 3: Cross multiply
    127,900.69x = 176,502.95 × 71,312.06
  4. Step 4: Simplify right side
    127,900.69x = 12,586,789,312.69
  5. Step 5: Solve for x
    x = 12,586,789,312.69/127,900.69
  6. Step 6: Final answer
    x = 98,410.65

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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.