Home / 157,155.85-235,358.56-90,455.76

Finding the Fourth Proportional to 157,155.85, 235,358.56 and 90,455.76

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Solution

The fourth proportional to 157,155.85, 235,358.56 and 90,455.76 is: 135,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,155.85 : 235,358.56 = 90,455.76 : x
  2. Step 2: Convert to fraction form
    157,155.85/235,358.56 = 90,455.76/x
  3. Step 3: Cross multiply
    157,155.85x = 235,358.56 × 90,455.76
  4. Step 4: Simplify right side
    157,155.85x = 21,289,538,192.32
  5. Step 5: Solve for x
    x = 21,289,538,192.32/157,155.85
  6. Step 6: Final answer
    x = 135,467.68

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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.