Home / 113,856.06-157,112.01-65,442.63

Finding the Fourth Proportional to 113,856.06, 157,112.01 and 65,442.63

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Solution

The fourth proportional to 113,856.06, 157,112.01 and 65,442.63 is: 90,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,856.06 : 157,112.01 = 65,442.63 : x
  2. Step 2: Convert to fraction form
    113,856.06/157,112.01 = 65,442.63/x
  3. Step 3: Cross multiply
    113,856.06x = 157,112.01 × 65,442.63
  4. Step 4: Simplify right side
    113,856.06x = 10,281,823,138.99
  5. Step 5: Solve for x
    x = 10,281,823,138.99/113,856.06
  6. Step 6: Final answer
    x = 90,305.45

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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.