Home / 122,748.02-183,779.20-66,386.20

Finding the Fourth Proportional to 122,748.02, 183,779.20 and 66,386.20

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Solution

The fourth proportional to 122,748.02, 183,779.20 and 66,386.20 is: 99,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,748.02 : 183,779.20 = 66,386.20 : x
  2. Step 2: Convert to fraction form
    122,748.02/183,779.20 = 66,386.20/x
  3. Step 3: Cross multiply
    122,748.02x = 183,779.20 × 66,386.20
  4. Step 4: Simplify right side
    122,748.02x = 12,200,402,727.04
  5. Step 5: Solve for x
    x = 12,200,402,727.04/122,748.02
  6. Step 6: Final answer
    x = 99,393.89

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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.