Home / 122,898.16-169,624.58-77,545.59

Finding the Fourth Proportional to 122,898.16, 169,624.58 and 77,545.59

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Solution

The fourth proportional to 122,898.16, 169,624.58 and 77,545.59 is: 107,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,898.16 : 169,624.58 = 77,545.59 : x
  2. Step 2: Convert to fraction form
    122,898.16/169,624.58 = 77,545.59/x
  3. Step 3: Cross multiply
    122,898.16x = 169,624.58 × 77,545.59
  4. Step 4: Simplify right side
    122,898.16x = 13,153,637,401.58
  5. Step 5: Solve for x
    x = 13,153,637,401.58/122,898.16
  6. Step 6: Final answer
    x = 107,028.76

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1.5x scale

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.