Home / 145,439.48-200,658.20-118,535.72

Finding the Fourth Proportional to 145,439.48, 200,658.20 and 118,535.72

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Solution

The fourth proportional to 145,439.48, 200,658.20 and 118,535.72 is: 163,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,439.48 : 200,658.20 = 118,535.72 : x
  2. Step 2: Convert to fraction form
    145,439.48/200,658.20 = 118,535.72/x
  3. Step 3: Cross multiply
    145,439.48x = 200,658.20 × 118,535.72
  4. Step 4: Simplify right side
    145,439.48x = 23,785,164,210.90
  5. Step 5: Solve for x
    x = 23,785,164,210.90/145,439.48
  6. Step 6: Final answer
    x = 163,539.94

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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.