Home / 152,340.83-210,232.49-87,774.38

Finding the Fourth Proportional to 152,340.83, 210,232.49 and 87,774.38

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Solution

The fourth proportional to 152,340.83, 210,232.49 and 87,774.38 is: 121,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,340.83 : 210,232.49 = 87,774.38 : x
  2. Step 2: Convert to fraction form
    152,340.83/210,232.49 = 87,774.38/x
  3. Step 3: Cross multiply
    152,340.83x = 210,232.49 × 87,774.38
  4. Step 4: Simplify right side
    152,340.83x = 18,453,024,975.57
  5. Step 5: Solve for x
    x = 18,453,024,975.57/152,340.83
  6. Step 6: Final answer
    x = 121,129.87

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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.