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Finding the Fourth Proportional to 145,507.60, 218,187.52 and 66,554.16

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Solution

The fourth proportional to 145,507.60, 218,187.52 and 66,554.16 is: 99,797.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,507.60 : 218,187.52 = 66,554.16 : x
  2. Step 2: Convert to fraction form
    145,507.60/218,187.52 = 66,554.16/x
  3. Step 3: Cross multiply
    145,507.60x = 218,187.52 × 66,554.16
  4. Step 4: Simplify right side
    145,507.60x = 14,521,287,116.08
  5. Step 5: Solve for x
    x = 14,521,287,116.08/145,507.60
  6. Step 6: Final answer
    x = 99,797.45

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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.