Home / 119,085.04-178,671.18-85,842.64

Finding the Fourth Proportional to 119,085.04, 178,671.18 and 85,842.64

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Solution

The fourth proportional to 119,085.04, 178,671.18 and 85,842.64 is: 128,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,085.04 : 178,671.18 = 85,842.64 : x
  2. Step 2: Convert to fraction form
    119,085.04/178,671.18 = 85,842.64/x
  3. Step 3: Cross multiply
    119,085.04x = 178,671.18 × 85,842.64
  4. Step 4: Simplify right side
    119,085.04x = 15,337,605,783.12
  5. Step 5: Solve for x
    x = 15,337,605,783.12/119,085.04
  6. Step 6: Final answer
    x = 128,795.40

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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.