Home / 133,209.48-183,823.38-72,779.16

Finding the Fourth Proportional to 133,209.48, 183,823.38 and 72,779.16

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Solution

The fourth proportional to 133,209.48, 183,823.38 and 72,779.16 is: 100,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,209.48 : 183,823.38 = 72,779.16 : x
  2. Step 2: Convert to fraction form
    133,209.48/183,823.38 = 72,779.16/x
  3. Step 3: Cross multiply
    133,209.48x = 183,823.38 × 72,779.16
  4. Step 4: Simplify right side
    133,209.48x = 13,378,511,184.76
  5. Step 5: Solve for x
    x = 13,378,511,184.76/133,209.48
  6. Step 6: Final answer
    x = 100,432.13

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1.5x scale

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.