Home / 130,653.60-180,315.36-76,955.52

Finding the Fourth Proportional to 130,653.60, 180,315.36 and 76,955.52

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Solution

The fourth proportional to 130,653.60, 180,315.36 and 76,955.52 is: 106,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,653.60 : 180,315.36 = 76,955.52 : x
  2. Step 2: Convert to fraction form
    130,653.60/180,315.36 = 76,955.52/x
  3. Step 3: Cross multiply
    130,653.60x = 180,315.36 × 76,955.52
  4. Step 4: Simplify right side
    130,653.60x = 13,876,262,292.79
  5. Step 5: Solve for x
    x = 13,876,262,292.79/130,653.60
  6. Step 6: Final answer
    x = 106,206.51

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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.