Home / 122,693.10-184,039.65-85,368.30

Finding the Fourth Proportional to 122,693.10, 184,039.65 and 85,368.30

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Solution

The fourth proportional to 122,693.10, 184,039.65 and 85,368.30 is: 128,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,693.10 : 184,039.65 = 85,368.30 : x
  2. Step 2: Convert to fraction form
    122,693.10/184,039.65 = 85,368.30/x
  3. Step 3: Cross multiply
    122,693.10x = 184,039.65 × 85,368.30
  4. Step 4: Simplify right side
    122,693.10x = 15,711,152,053.10
  5. Step 5: Solve for x
    x = 15,711,152,053.10/122,693.10
  6. Step 6: Final answer
    x = 128,052.45

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1.5x scale

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.