Home / 124,510.08-172,550.80-122,147.20

Finding the Fourth Proportional to 124,510.08, 172,550.80 and 122,147.20

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Solution

The fourth proportional to 124,510.08, 172,550.80 and 122,147.20 is: 169,276.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,510.08 : 172,550.80 = 122,147.20 : x
  2. Step 2: Convert to fraction form
    124,510.08/172,550.80 = 122,147.20/x
  3. Step 3: Cross multiply
    124,510.08x = 172,550.80 × 122,147.20
  4. Step 4: Simplify right side
    124,510.08x = 21,076,597,077.76
  5. Step 5: Solve for x
    x = 21,076,597,077.76/124,510.08
  6. Step 6: Final answer
    x = 169,276.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.