Home / 122,455.12-183,752.76-66,296.40

Finding the Fourth Proportional to 122,455.12, 183,752.76 and 66,296.40

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Solution

The fourth proportional to 122,455.12, 183,752.76 and 66,296.40 is: 99,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,455.12 : 183,752.76 = 66,296.40 : x
  2. Step 2: Convert to fraction form
    122,455.12/183,752.76 = 66,296.40/x
  3. Step 3: Cross multiply
    122,455.12x = 183,752.76 × 66,296.40
  4. Step 4: Simplify right side
    122,455.12x = 12,182,146,478.06
  5. Step 5: Solve for x
    x = 12,182,146,478.06/122,455.12
  6. Step 6: Final answer
    x = 99,482.54

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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.