Home / 130,927.41-180,685.76-77,214.69

Finding the Fourth Proportional to 130,927.41, 180,685.76 and 77,214.69

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Solution

The fourth proportional to 130,927.41, 180,685.76 and 77,214.69 is: 106,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,927.41 : 180,685.76 = 77,214.69 : x
  2. Step 2: Convert to fraction form
    130,927.41/180,685.76 = 77,214.69/x
  3. Step 3: Cross multiply
    130,927.41x = 180,685.76 × 77,214.69
  4. Step 4: Simplify right side
    130,927.41x = 13,951,594,559.74
  5. Step 5: Solve for x
    x = 13,951,594,559.74/130,927.41
  6. Step 6: Final answer
    x = 106,559.77

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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.