Home / 153,072.12-211,400.96-136,374.40

Finding the Fourth Proportional to 153,072.12, 211,400.96 and 136,374.40

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Solution

The fourth proportional to 153,072.12, 211,400.96 and 136,374.40 is: 188,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,072.12 : 211,400.96 = 136,374.40 : x
  2. Step 2: Convert to fraction form
    153,072.12/211,400.96 = 136,374.40/x
  3. Step 3: Cross multiply
    153,072.12x = 211,400.96 × 136,374.40
  4. Step 4: Simplify right side
    153,072.12x = 28,829,679,079.42
  5. Step 5: Solve for x
    x = 28,829,679,079.42/153,072.12
  6. Step 6: Final answer
    x = 188,340.50

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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.