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Finding the Fourth Proportional to 145,873.74, 201,373.02 and 85,436.04

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Solution

The fourth proportional to 145,873.74, 201,373.02 and 85,436.04 is: 117,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,873.74 : 201,373.02 = 85,436.04 : x
  2. Step 2: Convert to fraction form
    145,873.74/201,373.02 = 85,436.04/x
  3. Step 3: Cross multiply
    145,873.74x = 201,373.02 × 85,436.04
  4. Step 4: Simplify right side
    145,873.74x = 17,204,513,391.64
  5. Step 5: Solve for x
    x = 17,204,513,391.64/145,873.74
  6. Step 6: Final answer
    x = 117,941.13

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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.