Home / 130,124.18-179,502.03-79,152.50

Finding the Fourth Proportional to 130,124.18, 179,502.03 and 79,152.50

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Solution

The fourth proportional to 130,124.18, 179,502.03 and 79,152.50 is: 109,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,124.18 : 179,502.03 = 79,152.50 : x
  2. Step 2: Convert to fraction form
    130,124.18/179,502.03 = 79,152.50/x
  3. Step 3: Cross multiply
    130,124.18x = 179,502.03 × 79,152.50
  4. Step 4: Simplify right side
    130,124.18x = 14,208,034,429.58
  5. Step 5: Solve for x
    x = 14,208,034,429.58/130,124.18
  6. Step 6: Final answer
    x = 109,188.27

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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.