Home / 113,817.21-157,088.93-65,447.45

Finding the Fourth Proportional to 113,817.21, 157,088.93 and 65,447.45

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Solution

The fourth proportional to 113,817.21, 157,088.93 and 65,447.45 is: 90,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,817.21 : 157,088.93 = 65,447.45 : x
  2. Step 2: Convert to fraction form
    113,817.21/157,088.93 = 65,447.45/x
  3. Step 3: Cross multiply
    113,817.21x = 157,088.93 × 65,447.45
  4. Step 4: Simplify right side
    113,817.21x = 10,281,069,891.73
  5. Step 5: Solve for x
    x = 10,281,069,891.73/113,817.21
  6. Step 6: Final answer
    x = 90,329.66

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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.