Home / 157,035.40-235,480.20-68,243.20

Finding the Fourth Proportional to 157,035.40, 235,480.20 and 68,243.20

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Solution

The fourth proportional to 157,035.40, 235,480.20 and 68,243.20 is: 102,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,035.40 : 235,480.20 = 68,243.20 : x
  2. Step 2: Convert to fraction form
    157,035.40/235,480.20 = 68,243.20/x
  3. Step 3: Cross multiply
    157,035.40x = 235,480.20 × 68,243.20
  4. Step 4: Simplify right side
    157,035.40x = 16,069,922,384.64
  5. Step 5: Solve for x
    x = 16,069,922,384.64/157,035.40
  6. Step 6: Final answer
    x = 102,333.12

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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.