Home / 156,059.10-215,303.94-102,417.00

Finding the Fourth Proportional to 156,059.10, 215,303.94 and 102,417.00

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Solution

The fourth proportional to 156,059.10, 215,303.94 and 102,417.00 is: 141,297.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,059.10 : 215,303.94 = 102,417.00 : x
  2. Step 2: Convert to fraction form
    156,059.10/215,303.94 = 102,417.00/x
  3. Step 3: Cross multiply
    156,059.10x = 215,303.94 × 102,417.00
  4. Step 4: Simplify right side
    156,059.10x = 22,050,783,649.15
  5. Step 5: Solve for x
    x = 22,050,783,649.15/156,059.10
  6. Step 6: Final answer
    x = 141,297.65

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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.