Home / 191,779.35-287,637.92-90,577.29

Finding the Fourth Proportional to 191,779.35, 287,637.92 and 90,577.29

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Solution

The fourth proportional to 191,779.35, 287,637.92 and 90,577.29 is: 135,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,779.35 : 287,637.92 = 90,577.29 : x
  2. Step 2: Convert to fraction form
    191,779.35/287,637.92 = 90,577.29/x
  3. Step 3: Cross multiply
    191,779.35x = 287,637.92 × 90,577.29
  4. Step 4: Simplify right side
    191,779.35x = 26,053,463,024.42
  5. Step 5: Solve for x
    x = 26,053,463,024.42/191,779.35
  6. Step 6: Final answer
    x = 135,851.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.