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Finding the Fourth Proportional to 145,897.98, 201,505.28 and 98,068.28

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Solution

The fourth proportional to 145,897.98, 201,505.28 and 98,068.28 is: 135,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,897.98 : 201,505.28 = 98,068.28 : x
  2. Step 2: Convert to fraction form
    145,897.98/201,505.28 = 98,068.28/x
  3. Step 3: Cross multiply
    145,897.98x = 201,505.28 × 98,068.28
  4. Step 4: Simplify right side
    145,897.98x = 19,761,276,220.52
  5. Step 5: Solve for x
    x = 19,761,276,220.52/145,897.98
  6. Step 6: Final answer
    x = 135,445.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.