Home / 130,142.08-179,575.95-76,422.07

Finding the Fourth Proportional to 130,142.08, 179,575.95 and 76,422.07

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Solution

The fourth proportional to 130,142.08, 179,575.95 and 76,422.07 is: 105,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,142.08 : 179,575.95 = 76,422.07 : x
  2. Step 2: Convert to fraction form
    130,142.08/179,575.95 = 76,422.07/x
  3. Step 3: Cross multiply
    130,142.08x = 179,575.95 × 76,422.07
  4. Step 4: Simplify right side
    130,142.08x = 13,723,565,821.22
  5. Step 5: Solve for x
    x = 13,723,565,821.22/130,142.08
  6. Step 6: Final answer
    x = 105,450.64

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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.