Home / 130,392.60-179,765.10-111,475.57

Finding the Fourth Proportional to 130,392.60, 179,765.10 and 111,475.57

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Solution

The fourth proportional to 130,392.60, 179,765.10 and 111,475.57 is: 153,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,392.60 : 179,765.10 = 111,475.57 : x
  2. Step 2: Convert to fraction form
    130,392.60/179,765.10 = 111,475.57/x
  3. Step 3: Cross multiply
    130,392.60x = 179,765.10 × 111,475.57
  4. Step 4: Simplify right side
    130,392.60x = 20,039,416,539.19
  5. Step 5: Solve for x
    x = 20,039,416,539.19/130,392.60
  6. Step 6: Final answer
    x = 153,685.23

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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.