Home / 153,646.20-211,956.39-102,671.45

Finding the Fourth Proportional to 153,646.20, 211,956.39 and 102,671.45

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Solution

The fourth proportional to 153,646.20, 211,956.39 and 102,671.45 is: 141,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,646.20 : 211,956.39 = 102,671.45 : x
  2. Step 2: Convert to fraction form
    153,646.20/211,956.39 = 102,671.45/x
  3. Step 3: Cross multiply
    153,646.20x = 211,956.39 × 102,671.45
  4. Step 4: Simplify right side
    153,646.20x = 21,761,869,633.12
  5. Step 5: Solve for x
    x = 21,761,869,633.12/153,646.20
  6. Step 6: Final answer
    x = 141,636.24

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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.