Home / 122,117.24-168,437.65-85,895.51

Finding the Fourth Proportional to 122,117.24, 168,437.65 and 85,895.51

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Solution

The fourth proportional to 122,117.24, 168,437.65 and 85,895.51 is: 118,476.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.24 : 168,437.65 = 85,895.51 : x
  2. Step 2: Convert to fraction form
    122,117.24/168,437.65 = 85,895.51/x
  3. Step 3: Cross multiply
    122,117.24x = 168,437.65 × 85,895.51
  4. Step 4: Simplify right side
    122,117.24x = 14,468,037,849.95
  5. Step 5: Solve for x
    x = 14,468,037,849.95/122,117.24
  6. Step 6: Final answer
    x = 118,476.62

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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.