Home / 130,423.08-180,011.16-79,452.48

Finding the Fourth Proportional to 130,423.08, 180,011.16 and 79,452.48

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Solution

The fourth proportional to 130,423.08, 180,011.16 and 79,452.48 is: 109,661.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,423.08 : 180,011.16 = 79,452.48 : x
  2. Step 2: Convert to fraction form
    130,423.08/180,011.16 = 79,452.48/x
  3. Step 3: Cross multiply
    130,423.08x = 180,011.16 × 79,452.48
  4. Step 4: Simplify right side
    130,423.08x = 14,302,333,089.68
  5. Step 5: Solve for x
    x = 14,302,333,089.68/130,423.08
  6. Step 6: Final answer
    x = 109,661.06

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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.