Home / 261,629.70-392,444.55-112,038.90

Finding the Fourth Proportional to 261,629.70, 392,444.55 and 112,038.90

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Solution

The fourth proportional to 261,629.70, 392,444.55 and 112,038.90 is: 168,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,629.70 : 392,444.55 = 112,038.90 : x
  2. Step 2: Convert to fraction form
    261,629.70/392,444.55 = 112,038.90/x
  3. Step 3: Cross multiply
    261,629.70x = 392,444.55 × 112,038.90
  4. Step 4: Simplify right side
    261,629.70x = 43,969,055,693.00
  5. Step 5: Solve for x
    x = 43,969,055,693.00/261,629.70
  6. Step 6: Final answer
    x = 168,058.35

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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.