Home / 205,421.76-283,478.64-114,779.04

Finding the Fourth Proportional to 205,421.76, 283,478.64 and 114,779.04

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Solution

The fourth proportional to 205,421.76, 283,478.64 and 114,779.04 is: 158,393.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,421.76 : 283,478.64 = 114,779.04 : x
  2. Step 2: Convert to fraction form
    205,421.76/283,478.64 = 114,779.04/x
  3. Step 3: Cross multiply
    205,421.76x = 283,478.64 × 114,779.04
  4. Step 4: Simplify right side
    205,421.76x = 32,537,406,159.71
  5. Step 5: Solve for x
    x = 32,537,406,159.71/205,421.76
  6. Step 6: Final answer
    x = 158,393.18

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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.