Home / 130,678.65-180,334.17-73,319.04

Finding the Fourth Proportional to 130,678.65, 180,334.17 and 73,319.04

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Solution

The fourth proportional to 130,678.65, 180,334.17 and 73,319.04 is: 101,178.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,678.65 : 180,334.17 = 73,319.04 : x
  2. Step 2: Convert to fraction form
    130,678.65/180,334.17 = 73,319.04/x
  3. Step 3: Cross multiply
    130,678.65x = 180,334.17 × 73,319.04
  4. Step 4: Simplify right side
    130,678.65x = 13,221,928,223.60
  5. Step 5: Solve for x
    x = 13,221,928,223.60/130,678.65
  6. Step 6: Final answer
    x = 101,178.95

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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.