Home / 156,741.12-216,368.94-105,822.81

Finding the Fourth Proportional to 156,741.12, 216,368.94 and 105,822.81

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Solution

The fourth proportional to 156,741.12, 216,368.94 and 105,822.81 is: 146,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.12 : 216,368.94 = 105,822.81 : x
  2. Step 2: Convert to fraction form
    156,741.12/216,368.94 = 105,822.81/x
  3. Step 3: Cross multiply
    156,741.12x = 216,368.94 × 105,822.81
  4. Step 4: Simplify right side
    156,741.12x = 22,896,769,227.52
  5. Step 5: Solve for x
    x = 22,896,769,227.52/156,741.12
  6. Step 6: Final answer
    x = 146,080.17

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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.