Home / 130,030.34-179,445.24-76,317.62

Finding the Fourth Proportional to 130,030.34, 179,445.24 and 76,317.62

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Solution

The fourth proportional to 130,030.34, 179,445.24 and 76,317.62 is: 105,320.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,030.34 : 179,445.24 = 76,317.62 : x
  2. Step 2: Convert to fraction form
    130,030.34/179,445.24 = 76,317.62/x
  3. Step 3: Cross multiply
    130,030.34x = 179,445.24 × 76,317.62
  4. Step 4: Simplify right side
    130,030.34x = 13,694,832,739.90
  5. Step 5: Solve for x
    x = 13,694,832,739.90/130,030.34
  6. Step 6: Final answer
    x = 105,320.29

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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.