Home / 130,331.72-179,857.14-70,715.72

Finding the Fourth Proportional to 130,331.72, 179,857.14 and 70,715.72

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Solution

The fourth proportional to 130,331.72, 179,857.14 and 70,715.72 is: 97,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,331.72 : 179,857.14 = 70,715.72 : x
  2. Step 2: Convert to fraction form
    130,331.72/179,857.14 = 70,715.72/x
  3. Step 3: Cross multiply
    130,331.72x = 179,857.14 × 70,715.72
  4. Step 4: Simplify right side
    130,331.72x = 12,718,727,152.24
  5. Step 5: Solve for x
    x = 12,718,727,152.24/130,331.72
  6. Step 6: Final answer
    x = 97,587.35

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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.