Home / 156,740.60-216,368.23-105,822.32

Finding the Fourth Proportional to 156,740.60, 216,368.23 and 105,822.32

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Solution

The fourth proportional to 156,740.60, 216,368.23 and 105,822.32 is: 146,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.60 : 216,368.23 = 105,822.32 : x
  2. Step 2: Convert to fraction form
    156,740.60/216,368.23 = 105,822.32/x
  3. Step 3: Cross multiply
    156,740.60x = 216,368.23 × 105,822.32
  4. Step 4: Simplify right side
    156,740.60x = 22,896,586,924.91
  5. Step 5: Solve for x
    x = 22,896,586,924.91/156,740.60
  6. Step 6: Final answer
    x = 146,079.49

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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.