Home / 113,931.18-157,220.24-65,529.46

Finding the Fourth Proportional to 113,931.18, 157,220.24 and 65,529.46

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Solution

The fourth proportional to 113,931.18, 157,220.24 and 65,529.46 is: 90,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,931.18 : 157,220.24 = 65,529.46 : x
  2. Step 2: Convert to fraction form
    113,931.18/157,220.24 = 65,529.46/x
  3. Step 3: Cross multiply
    113,931.18x = 157,220.24 × 65,529.46
  4. Step 4: Simplify right side
    113,931.18x = 10,302,557,428.27
  5. Step 5: Solve for x
    x = 10,302,557,428.27/113,931.18
  6. Step 6: Final answer
    x = 90,427.90

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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.