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Finding the Fourth Proportional to 170,145, 234,813.66 and 98,526.28

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Solution

The fourth proportional to 170,145, 234,813.66 and 98,526.28 is: 135,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,145 : 234,813.66 = 98,526.28 : x
  2. Step 2: Convert to fraction form
    170,145/234,813.66 = 98,526.28/x
  3. Step 3: Cross multiply
    170,145x = 234,813.66 × 98,526.28
  4. Step 4: Simplify right side
    170,145x = 23,135,316,412.98
  5. Step 5: Solve for x
    x = 23,135,316,412.98/170,145
  6. Step 6: Final answer
    x = 135,974.12

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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.