Home / 147,777.80-221,666.70-88,680.20

Finding the Fourth Proportional to 147,777.80, 221,666.70 and 88,680.20

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Solution

The fourth proportional to 147,777.80, 221,666.70 and 88,680.20 is: 133,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,777.80 : 221,666.70 = 88,680.20 : x
  2. Step 2: Convert to fraction form
    147,777.80/221,666.70 = 88,680.20/x
  3. Step 3: Cross multiply
    147,777.80x = 221,666.70 × 88,680.20
  4. Step 4: Simplify right side
    147,777.80x = 19,657,447,289.34
  5. Step 5: Solve for x
    x = 19,657,447,289.34/147,777.80
  6. Step 6: Final answer
    x = 133,020.30

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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.