Home / 157,215.24-235,742.72-77,258.52

Finding the Fourth Proportional to 157,215.24, 235,742.72 and 77,258.52

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Solution

The fourth proportional to 157,215.24, 235,742.72 and 77,258.52 is: 115,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,215.24 : 235,742.72 = 77,258.52 : x
  2. Step 2: Convert to fraction form
    157,215.24/235,742.72 = 77,258.52/x
  3. Step 3: Cross multiply
    157,215.24x = 235,742.72 × 77,258.52
  4. Step 4: Simplify right side
    157,215.24x = 18,213,133,647.97
  5. Step 5: Solve for x
    x = 18,213,133,647.97/157,215.24
  6. Step 6: Final answer
    x = 115,848.40

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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.