Home / 130,031.64-195,202.98-77,465.88

Finding the Fourth Proportional to 130,031.64, 195,202.98 and 77,465.88

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Solution

The fourth proportional to 130,031.64, 195,202.98 and 77,465.88 is: 116,291.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,031.64 : 195,202.98 = 77,465.88 : x
  2. Step 2: Convert to fraction form
    130,031.64/195,202.98 = 77,465.88/x
  3. Step 3: Cross multiply
    130,031.64x = 195,202.98 × 77,465.88
  4. Step 4: Simplify right side
    130,031.64x = 15,121,570,624.32
  5. Step 5: Solve for x
    x = 15,121,570,624.32/130,031.64
  6. Step 6: Final answer
    x = 116,291.47

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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.