Home / 153,901.48-212,472.38-117,315.70

Finding the Fourth Proportional to 153,901.48, 212,472.38 and 117,315.70

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Solution

The fourth proportional to 153,901.48, 212,472.38 and 117,315.70 is: 161,963.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,901.48 : 212,472.38 = 117,315.70 : x
  2. Step 2: Convert to fraction form
    153,901.48/212,472.38 = 117,315.70/x
  3. Step 3: Cross multiply
    153,901.48x = 212,472.38 × 117,315.70
  4. Step 4: Simplify right side
    153,901.48x = 24,926,345,990.37
  5. Step 5: Solve for x
    x = 24,926,345,990.37/153,901.48
  6. Step 6: Final answer
    x = 161,963.00

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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.