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Finding the Fourth Proportional to 174,013.40, 261,020.10 and 120,869.30

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Solution

The fourth proportional to 174,013.40, 261,020.10 and 120,869.30 is: 181,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,013.40 : 261,020.10 = 120,869.30 : x
  2. Step 2: Convert to fraction form
    174,013.40/261,020.10 = 120,869.30/x
  3. Step 3: Cross multiply
    174,013.40x = 261,020.10 × 120,869.30
  4. Step 4: Simplify right side
    174,013.40x = 31,549,316,772.93
  5. Step 5: Solve for x
    x = 31,549,316,772.93/174,013.40
  6. Step 6: Final answer
    x = 181,303.95

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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.