Home / 145,001.80-217,394.70-74,931.40

Finding the Fourth Proportional to 145,001.80, 217,394.70 and 74,931.40

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Solution

The fourth proportional to 145,001.80, 217,394.70 and 74,931.40 is: 112,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,001.80 : 217,394.70 = 74,931.40 : x
  2. Step 2: Convert to fraction form
    145,001.80/217,394.70 = 74,931.40/x
  3. Step 3: Cross multiply
    145,001.80x = 217,394.70 × 74,931.40
  4. Step 4: Simplify right side
    145,001.80x = 16,289,689,223.58
  5. Step 5: Solve for x
    x = 16,289,689,223.58/145,001.80
  6. Step 6: Final answer
    x = 112,341.29

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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.