Home / 130,870.08-180,624.06-77,151.96

Finding the Fourth Proportional to 130,870.08, 180,624.06 and 77,151.96

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Solution

The fourth proportional to 130,870.08, 180,624.06 and 77,151.96 is: 106,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,870.08 : 180,624.06 = 77,151.96 : x
  2. Step 2: Convert to fraction form
    130,870.08/180,624.06 = 77,151.96/x
  3. Step 3: Cross multiply
    130,870.08x = 180,624.06 × 77,151.96
  4. Step 4: Simplify right side
    130,870.08x = 13,935,500,252.16
  5. Step 5: Solve for x
    x = 13,935,500,252.16/130,870.08
  6. Step 6: Final answer
    x = 106,483.47

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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.