Home / 154,507.80-231,761.70-70,308.30

Finding the Fourth Proportional to 154,507.80, 231,761.70 and 70,308.30

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Solution

The fourth proportional to 154,507.80, 231,761.70 and 70,308.30 is: 105,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,507.80 : 231,761.70 = 70,308.30 : x
  2. Step 2: Convert to fraction form
    154,507.80/231,761.70 = 70,308.30/x
  3. Step 3: Cross multiply
    154,507.80x = 231,761.70 × 70,308.30
  4. Step 4: Simplify right side
    154,507.80x = 16,294,771,132.11
  5. Step 5: Solve for x
    x = 16,294,771,132.11/154,507.80
  6. Step 6: Final answer
    x = 105,462.45

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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.