Home / 162,017.40-243,026.10-128,556.30

Finding the Fourth Proportional to 162,017.40, 243,026.10 and 128,556.30

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Solution

The fourth proportional to 162,017.40, 243,026.10 and 128,556.30 is: 192,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,017.40 : 243,026.10 = 128,556.30 : x
  2. Step 2: Convert to fraction form
    162,017.40/243,026.10 = 128,556.30/x
  3. Step 3: Cross multiply
    162,017.40x = 243,026.10 × 128,556.30
  4. Step 4: Simplify right side
    162,017.40x = 31,242,536,219.43
  5. Step 5: Solve for x
    x = 31,242,536,219.43/162,017.40
  6. Step 6: Final answer
    x = 192,834.45

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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.