Home / 156,986.40-235,479.60-155,510.18

Finding the Fourth Proportional to 156,986.40, 235,479.60 and 155,510.18

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Solution

The fourth proportional to 156,986.40, 235,479.60 and 155,510.18 is: 233,265.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.40 : 235,479.60 = 155,510.18 : x
  2. Step 2: Convert to fraction form
    156,986.40/235,479.60 = 155,510.18/x
  3. Step 3: Cross multiply
    156,986.40x = 235,479.60 × 155,510.18
  4. Step 4: Simplify right side
    156,986.40x = 36,619,473,804.93
  5. Step 5: Solve for x
    x = 36,619,473,804.93/156,986.40
  6. Step 6: Final answer
    x = 233,265.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.