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Finding the Fourth Proportional to 98,326.63, 147,490.10 and 42,130.30

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Solution

The fourth proportional to 98,326.63, 147,490.10 and 42,130.30 is: 63,195.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,326.63 : 147,490.10 = 42,130.30 : x
  2. Step 2: Convert to fraction form
    98,326.63/147,490.10 = 42,130.30/x
  3. Step 3: Cross multiply
    98,326.63x = 147,490.10 × 42,130.30
  4. Step 4: Simplify right side
    98,326.63x = 6,213,802,160.03
  5. Step 5: Solve for x
    x = 6,213,802,160.03/98,326.63
  6. Step 6: Final answer
    x = 63,195.52

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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.