Home / 130,486.40-180,065.22-73,898.18

Finding the Fourth Proportional to 130,486.40, 180,065.22 and 73,898.18

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Solution

The fourth proportional to 130,486.40, 180,065.22 and 73,898.18 is: 101,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,486.40 : 180,065.22 = 73,898.18 : x
  2. Step 2: Convert to fraction form
    130,486.40/180,065.22 = 73,898.18/x
  3. Step 3: Cross multiply
    130,486.40x = 180,065.22 × 73,898.18
  4. Step 4: Simplify right side
    130,486.40x = 13,306,492,039.30
  5. Step 5: Solve for x
    x = 13,306,492,039.30/130,486.40
  6. Step 6: Final answer
    x = 101,976.08

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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.