Home / 122,303.76-168,622.95-79,207.10

Finding the Fourth Proportional to 122,303.76, 168,622.95 and 79,207.10

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Solution

The fourth proportional to 122,303.76, 168,622.95 and 79,207.10 is: 109,204.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,303.76 : 168,622.95 = 79,207.10 : x
  2. Step 2: Convert to fraction form
    122,303.76/168,622.95 = 79,207.10/x
  3. Step 3: Cross multiply
    122,303.76x = 168,622.95 × 79,207.10
  4. Step 4: Simplify right side
    122,303.76x = 13,356,134,862.95
  5. Step 5: Solve for x
    x = 13,356,134,862.95/122,303.76
  6. Step 6: Final answer
    x = 109,204.61

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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.