Home / 156,854.61-216,460.55-85,235.02

Finding the Fourth Proportional to 156,854.61, 216,460.55 and 85,235.02

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Solution

The fourth proportional to 156,854.61, 216,460.55 and 85,235.02 is: 117,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,854.61 : 216,460.55 = 85,235.02 : x
  2. Step 2: Convert to fraction form
    156,854.61/216,460.55 = 85,235.02/x
  3. Step 3: Cross multiply
    156,854.61x = 216,460.55 × 85,235.02
  4. Step 4: Simplify right side
    156,854.61x = 18,450,018,980.40
  5. Step 5: Solve for x
    x = 18,450,018,980.40/156,854.61
  6. Step 6: Final answer
    x = 117,624.97

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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.