Home / 153,488.07-211,829.13-85,516.11

Finding the Fourth Proportional to 153,488.07, 211,829.13 and 85,516.11

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Solution

The fourth proportional to 153,488.07, 211,829.13 and 85,516.11 is: 118,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,488.07 : 211,829.13 = 85,516.11 : x
  2. Step 2: Convert to fraction form
    153,488.07/211,829.13 = 85,516.11/x
  3. Step 3: Cross multiply
    153,488.07x = 211,829.13 × 85,516.11
  4. Step 4: Simplify right side
    153,488.07x = 18,114,803,182.28
  5. Step 5: Solve for x
    x = 18,114,803,182.28/153,488.07
  6. Step 6: Final answer
    x = 118,020.92

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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.