Home / 123,900.02-170,886.90-83,549.88

Finding the Fourth Proportional to 123,900.02, 170,886.90 and 83,549.88

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Solution

The fourth proportional to 123,900.02, 170,886.90 and 83,549.88 is: 115,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,900.02 : 170,886.90 = 83,549.88 : x
  2. Step 2: Convert to fraction form
    123,900.02/170,886.90 = 83,549.88/x
  3. Step 3: Cross multiply
    123,900.02x = 170,886.90 × 83,549.88
  4. Step 4: Simplify right side
    123,900.02x = 14,277,579,988.57
  5. Step 5: Solve for x
    x = 14,277,579,988.57/123,900.02
  6. Step 6: Final answer
    x = 115,234.69

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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.