Home / 162,008.40-243,012.60-128,547.30

Finding the Fourth Proportional to 162,008.40, 243,012.60 and 128,547.30

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Solution

The fourth proportional to 162,008.40, 243,012.60 and 128,547.30 is: 192,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,008.40 : 243,012.60 = 128,547.30 : x
  2. Step 2: Convert to fraction form
    162,008.40/243,012.60 = 128,547.30/x
  3. Step 3: Cross multiply
    162,008.40x = 243,012.60 × 128,547.30
  4. Step 4: Simplify right side
    162,008.40x = 31,238,613,595.98
  5. Step 5: Solve for x
    x = 31,238,613,595.98/162,008.40
  6. Step 6: Final answer
    x = 192,820.95

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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.