Home / 153,274.18-211,398.54-99,576.50

Finding the Fourth Proportional to 153,274.18, 211,398.54 and 99,576.50

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Solution

The fourth proportional to 153,274.18, 211,398.54 and 99,576.50 is: 137,337.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,274.18 : 211,398.54 = 99,576.50 : x
  2. Step 2: Convert to fraction form
    153,274.18/211,398.54 = 99,576.50/x
  3. Step 3: Cross multiply
    153,274.18x = 211,398.54 × 99,576.50
  4. Step 4: Simplify right side
    153,274.18x = 21,050,326,718.31
  5. Step 5: Solve for x
    x = 21,050,326,718.31/153,274.18
  6. Step 6: Final answer
    x = 137,337.72

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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.