Home / 153,275.18-211,399.92-99,577.50

Finding the Fourth Proportional to 153,275.18, 211,399.92 and 99,577.50

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Solution

The fourth proportional to 153,275.18, 211,399.92 and 99,577.50 is: 137,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,275.18 : 211,399.92 = 99,577.50 : x
  2. Step 2: Convert to fraction form
    153,275.18/211,399.92 = 99,577.50/x
  3. Step 3: Cross multiply
    153,275.18x = 211,399.92 × 99,577.50
  4. Step 4: Simplify right side
    153,275.18x = 21,050,675,533.80
  5. Step 5: Solve for x
    x = 21,050,675,533.80/153,275.18
  6. Step 6: Final answer
    x = 137,339.10

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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.