Home / 113,356.08-156,303.52-87,455.62

Finding the Fourth Proportional to 113,356.08, 156,303.52 and 87,455.62

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Solution

The fourth proportional to 113,356.08, 156,303.52 and 87,455.62 is: 120,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,356.08 : 156,303.52 = 87,455.62 : x
  2. Step 2: Convert to fraction form
    113,356.08/156,303.52 = 87,455.62/x
  3. Step 3: Cross multiply
    113,356.08x = 156,303.52 × 87,455.62
  4. Step 4: Simplify right side
    113,356.08x = 13,669,622,158.06
  5. Step 5: Solve for x
    x = 13,669,622,158.06/113,356.08
  6. Step 6: Final answer
    x = 120,590.11

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1.5x scale

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.