Home / 122,775.32-169,285.02-84,031.83

Finding the Fourth Proportional to 122,775.32, 169,285.02 and 84,031.83

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Solution

The fourth proportional to 122,775.32, 169,285.02 and 84,031.83 is: 115,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,775.32 : 169,285.02 = 84,031.83 : x
  2. Step 2: Convert to fraction form
    122,775.32/169,285.02 = 84,031.83/x
  3. Step 3: Cross multiply
    122,775.32x = 169,285.02 × 84,031.83
  4. Step 4: Simplify right side
    122,775.32x = 14,225,330,022.19
  5. Step 5: Solve for x
    x = 14,225,330,022.19/122,775.32
  6. Step 6: Final answer
    x = 115,864.74

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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.