Home / 130,663.60-180,329.16-76,965.52

Finding the Fourth Proportional to 130,663.60, 180,329.16 and 76,965.52

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Solution

The fourth proportional to 130,663.60, 180,329.16 and 76,965.52 is: 106,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,663.60 : 180,329.16 = 76,965.52 : x
  2. Step 2: Convert to fraction form
    130,663.60/180,329.16 = 76,965.52/x
  3. Step 3: Cross multiply
    130,663.60x = 180,329.16 × 76,965.52
  4. Step 4: Simplify right side
    130,663.60x = 13,879,127,570.56
  5. Step 5: Solve for x
    x = 13,879,127,570.56/130,663.60
  6. Step 6: Final answer
    x = 106,220.31

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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.