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Finding the Fourth Proportional to 98,020.40, 147,030.60 and 88,980.80

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Solution

The fourth proportional to 98,020.40, 147,030.60 and 88,980.80 is: 133,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,020.40 : 147,030.60 = 88,980.80 : x
  2. Step 2: Convert to fraction form
    98,020.40/147,030.60 = 88,980.80/x
  3. Step 3: Cross multiply
    98,020.40x = 147,030.60 × 88,980.80
  4. Step 4: Simplify right side
    98,020.40x = 13,082,900,412.48
  5. Step 5: Solve for x
    x = 13,082,900,412.48/98,020.40
  6. Step 6: Final answer
    x = 133,471.20

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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.