Home / 212,021.91-292,492.69-130,275.95

Finding the Fourth Proportional to 212,021.91, 292,492.69 and 130,275.95

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Solution

The fourth proportional to 212,021.91, 292,492.69 and 130,275.95 is: 179,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,021.91 : 292,492.69 = 130,275.95 : x
  2. Step 2: Convert to fraction form
    212,021.91/292,492.69 = 130,275.95/x
  3. Step 3: Cross multiply
    212,021.91x = 292,492.69 × 130,275.95
  4. Step 4: Simplify right side
    212,021.91x = 38,104,761,269.65
  5. Step 5: Solve for x
    x = 38,104,761,269.65/212,021.91
  6. Step 6: Final answer
    x = 179,720.87

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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.