Home / 157,437.10-236,155.65-86,578.30

Finding the Fourth Proportional to 157,437.10, 236,155.65 and 86,578.30

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Solution

The fourth proportional to 157,437.10, 236,155.65 and 86,578.30 is: 129,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,437.10 : 236,155.65 = 86,578.30 : x
  2. Step 2: Convert to fraction form
    157,437.10/236,155.65 = 86,578.30/x
  3. Step 3: Cross multiply
    157,437.10x = 236,155.65 × 86,578.30
  4. Step 4: Simplify right side
    157,437.10x = 20,445,954,712.40
  5. Step 5: Solve for x
    x = 20,445,954,712.40/157,437.10
  6. Step 6: Final answer
    x = 129,867.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.