Home / 156,532.96-215,946.64-105,527.06

Finding the Fourth Proportional to 156,532.96, 215,946.64 and 105,527.06

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Solution

The fourth proportional to 156,532.96, 215,946.64 and 105,527.06 is: 145,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,532.96 : 215,946.64 = 105,527.06 : x
  2. Step 2: Convert to fraction form
    156,532.96/215,946.64 = 105,527.06/x
  3. Step 3: Cross multiply
    156,532.96x = 215,946.64 × 105,527.06
  4. Step 4: Simplify right side
    156,532.96x = 22,788,214,036.08
  5. Step 5: Solve for x
    x = 22,788,214,036.08/156,532.96
  6. Step 6: Final answer
    x = 145,580.93

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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.