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Finding the Fourth Proportional to 143,710.80, 215,598.60 and 43,875.60

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Solution

The fourth proportional to 143,710.80, 215,598.60 and 43,875.60 is: 65,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,710.80 : 215,598.60 = 43,875.60 : x
  2. Step 2: Convert to fraction form
    143,710.80/215,598.60 = 43,875.60/x
  3. Step 3: Cross multiply
    143,710.80x = 215,598.60 × 43,875.60
  4. Step 4: Simplify right side
    143,710.80x = 9,459,517,934.16
  5. Step 5: Solve for x
    x = 9,459,517,934.16/143,710.80
  6. Step 6: Final answer
    x = 65,823.29

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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.