Home / 261,840.24-392,901.12-104,070

Finding the Fourth Proportional to 261,840.24, 392,901.12 and 104,070

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Solution

The fourth proportional to 261,840.24, 392,901.12 and 104,070 is: 156,160.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,840.24 : 392,901.12 = 104,070 : x
  2. Step 2: Convert to fraction form
    261,840.24/392,901.12 = 104,070/x
  3. Step 3: Cross multiply
    261,840.24x = 392,901.12 × 104,070
  4. Step 4: Simplify right side
    261,840.24x = 40,889,219,558.40
  5. Step 5: Solve for x
    x = 40,889,219,558.40/261,840.24
  6. Step 6: Final answer
    x = 156,160.95

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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.