Home / 91,035.20-136,552.80-82,870.40

Finding the Fourth Proportional to 91,035.20, 136,552.80 and 82,870.40

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Solution

The fourth proportional to 91,035.20, 136,552.80 and 82,870.40 is: 124,305.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,035.20 : 136,552.80 = 82,870.40 : x
  2. Step 2: Convert to fraction form
    91,035.20/136,552.80 = 82,870.40/x
  3. Step 3: Cross multiply
    91,035.20x = 136,552.80 × 82,870.40
  4. Step 4: Simplify right side
    91,035.20x = 11,316,185,157.12
  5. Step 5: Solve for x
    x = 11,316,185,157.12/91,035.20
  6. Step 6: Final answer
    x = 124,305.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.