Home / 80,888.02-120,699.25-72,482.45

Finding the Fourth Proportional to 80,888.02, 120,699.25 and 72,482.45

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Solution

The fourth proportional to 80,888.02, 120,699.25 and 72,482.45 is: 108,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,888.02 : 120,699.25 = 72,482.45 : x
  2. Step 2: Convert to fraction form
    80,888.02/120,699.25 = 72,482.45/x
  3. Step 3: Cross multiply
    80,888.02x = 120,699.25 × 72,482.45
  4. Step 4: Simplify right side
    80,888.02x = 8,748,576,568.46
  5. Step 5: Solve for x
    x = 8,748,576,568.46/80,888.02
  6. Step 6: Final answer
    x = 108,156.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.