Home / 156,011.40-234,017.10-103,480.20

Finding the Fourth Proportional to 156,011.40, 234,017.10 and 103,480.20

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Solution

The fourth proportional to 156,011.40, 234,017.10 and 103,480.20 is: 155,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,011.40 : 234,017.10 = 103,480.20 : x
  2. Step 2: Convert to fraction form
    156,011.40/234,017.10 = 103,480.20/x
  3. Step 3: Cross multiply
    156,011.40x = 234,017.10 × 103,480.20
  4. Step 4: Simplify right side
    156,011.40x = 24,216,136,311.42
  5. Step 5: Solve for x
    x = 24,216,136,311.42/156,011.40
  6. Step 6: Final answer
    x = 155,220.30

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1.5x scale

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.