Home / 91,455.79-137,230.98-66,362.18

Finding the Fourth Proportional to 91,455.79, 137,230.98 and 66,362.18

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Solution

The fourth proportional to 91,455.79, 137,230.98 and 66,362.18 is: 99,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,455.79 : 137,230.98 = 66,362.18 : x
  2. Step 2: Convert to fraction form
    91,455.79/137,230.98 = 66,362.18/x
  3. Step 3: Cross multiply
    91,455.79x = 137,230.98 × 66,362.18
  4. Step 4: Simplify right side
    91,455.79x = 9,106,947,592.21
  5. Step 5: Solve for x
    x = 9,106,947,592.21/91,455.79
  6. Step 6: Final answer
    x = 99,577.60

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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.