Home / 130,004.30-194,617.65-77,386.70

Finding the Fourth Proportional to 130,004.30, 194,617.65 and 77,386.70

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Solution

The fourth proportional to 130,004.30, 194,617.65 and 77,386.70 is: 115,848.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,004.30 : 194,617.65 = 77,386.70 : x
  2. Step 2: Convert to fraction form
    130,004.30/194,617.65 = 77,386.70/x
  3. Step 3: Cross multiply
    130,004.30x = 194,617.65 × 77,386.70
  4. Step 4: Simplify right side
    130,004.30x = 15,060,817,695.26
  5. Step 5: Solve for x
    x = 15,060,817,695.26/130,004.30
  6. Step 6: Final answer
    x = 115,848.61

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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.