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Finding the Fourth Proportional to 147,053.40, 220,142.70 and 87,858.60

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Solution

The fourth proportional to 147,053.40, 220,142.70 and 87,858.60 is: 131,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,053.40 : 220,142.70 = 87,858.60 : x
  2. Step 2: Convert to fraction form
    147,053.40/220,142.70 = 87,858.60/x
  3. Step 3: Cross multiply
    147,053.40x = 220,142.70 × 87,858.60
  4. Step 4: Simplify right side
    147,053.40x = 19,341,429,422.22
  5. Step 5: Solve for x
    x = 19,341,429,422.22/147,053.40
  6. Step 6: Final answer
    x = 131,526.57

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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.