Home / 130,956.25-180,711.12-77,228.95

Finding the Fourth Proportional to 130,956.25, 180,711.12 and 77,228.95

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Solution

The fourth proportional to 130,956.25, 180,711.12 and 77,228.95 is: 106,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,956.25 : 180,711.12 = 77,228.95 : x
  2. Step 2: Convert to fraction form
    130,956.25/180,711.12 = 77,228.95/x
  3. Step 3: Cross multiply
    130,956.25x = 180,711.12 × 77,228.95
  4. Step 4: Simplify right side
    130,956.25x = 13,956,130,050.92
  5. Step 5: Solve for x
    x = 13,956,130,050.92/130,956.25
  6. Step 6: Final answer
    x = 106,570.94

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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.