Home / 113,158.40-156,093.63-70,643.12

Finding the Fourth Proportional to 113,158.40, 156,093.63 and 70,643.12

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Solution

The fourth proportional to 113,158.40, 156,093.63 and 70,643.12 is: 97,446.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,158.40 : 156,093.63 = 70,643.12 : x
  2. Step 2: Convert to fraction form
    113,158.40/156,093.63 = 70,643.12/x
  3. Step 3: Cross multiply
    113,158.40x = 156,093.63 × 70,643.12
  4. Step 4: Simplify right side
    113,158.40x = 11,026,939,989.95
  5. Step 5: Solve for x
    x = 11,026,939,989.95/113,158.40
  6. Step 6: Final answer
    x = 97,446.95

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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.