Home / 130,176.88-179,609.64-76,444.72

Finding the Fourth Proportional to 130,176.88, 179,609.64 and 76,444.72

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Solution

The fourth proportional to 130,176.88, 179,609.64 and 76,444.72 is: 105,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,176.88 : 179,609.64 = 76,444.72 : x
  2. Step 2: Convert to fraction form
    130,176.88/179,609.64 = 76,444.72/x
  3. Step 3: Cross multiply
    130,176.88x = 179,609.64 × 76,444.72
  4. Step 4: Simplify right side
    130,176.88x = 13,730,208,639.10
  5. Step 5: Solve for x
    x = 13,730,208,639.10/130,176.88
  6. Step 6: Final answer
    x = 105,473.48

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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.