Home / 125,995.20-189,065.70-47,117.40

Finding the Fourth Proportional to 125,995.20, 189,065.70 and 47,117.40

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Solution

The fourth proportional to 125,995.20, 189,065.70 and 47,117.40 is: 70,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,995.20 : 189,065.70 = 47,117.40 : x
  2. Step 2: Convert to fraction form
    125,995.20/189,065.70 = 47,117.40/x
  3. Step 3: Cross multiply
    125,995.20x = 189,065.70 × 47,117.40
  4. Step 4: Simplify right side
    125,995.20x = 8,908,284,213.18
  5. Step 5: Solve for x
    x = 8,908,284,213.18/125,995.20
  6. Step 6: Final answer
    x = 70,703.36

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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.