Home / 162,648.90-243,973.35-136,988.10

Finding the Fourth Proportional to 162,648.90, 243,973.35 and 136,988.10

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Solution

The fourth proportional to 162,648.90, 243,973.35 and 136,988.10 is: 205,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,648.90 : 243,973.35 = 136,988.10 : x
  2. Step 2: Convert to fraction form
    162,648.90/243,973.35 = 136,988.10/x
  3. Step 3: Cross multiply
    162,648.90x = 243,973.35 × 136,988.10
  4. Step 4: Simplify right side
    162,648.90x = 33,421,445,667.14
  5. Step 5: Solve for x
    x = 33,421,445,667.14/162,648.90
  6. Step 6: Final answer
    x = 205,482.15

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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.