Home / 160,205.12-221,082.48-90,348.86

Finding the Fourth Proportional to 160,205.12, 221,082.48 and 90,348.86

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Solution

The fourth proportional to 160,205.12, 221,082.48 and 90,348.86 is: 124,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,205.12 : 221,082.48 = 90,348.86 : x
  2. Step 2: Convert to fraction form
    160,205.12/221,082.48 = 90,348.86/x
  3. Step 3: Cross multiply
    160,205.12x = 221,082.48 × 90,348.86
  4. Step 4: Simplify right side
    160,205.12x = 19,974,550,621.81
  5. Step 5: Solve for x
    x = 19,974,550,621.81/160,205.12
  6. Step 6: Final answer
    x = 124,681.10

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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.