Home / 150,038.05-207,077.97-86,412.69

Finding the Fourth Proportional to 150,038.05, 207,077.97 and 86,412.69

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Solution

The fourth proportional to 150,038.05, 207,077.97 and 86,412.69 is: 119,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,038.05 : 207,077.97 = 86,412.69 : x
  2. Step 2: Convert to fraction form
    150,038.05/207,077.97 = 86,412.69/x
  3. Step 3: Cross multiply
    150,038.05x = 207,077.97 × 86,412.69
  4. Step 4: Simplify right side
    150,038.05x = 17,894,164,427.44
  5. Step 5: Solve for x
    x = 17,894,164,427.44/150,038.05
  6. Step 6: Final answer
    x = 119,264.18

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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.