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Finding the Fourth Proportional to 98,300.80, 147,256.80 and 91,302.40

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Solution

The fourth proportional to 98,300.80, 147,256.80 and 91,302.40 is: 136,773.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,300.80 : 147,256.80 = 91,302.40 : x
  2. Step 2: Convert to fraction form
    98,300.80/147,256.80 = 91,302.40/x
  3. Step 3: Cross multiply
    98,300.80x = 147,256.80 × 91,302.40
  4. Step 4: Simplify right side
    98,300.80x = 13,444,899,256.32
  5. Step 5: Solve for x
    x = 13,444,899,256.32/98,300.80
  6. Step 6: Final answer
    x = 136,773.04

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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.