Home / 165,975.12-249,035.04-87,070.32

Finding the Fourth Proportional to 165,975.12, 249,035.04 and 87,070.32

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Solution

The fourth proportional to 165,975.12, 249,035.04 and 87,070.32 is: 130,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,975.12 : 249,035.04 = 87,070.32 : x
  2. Step 2: Convert to fraction form
    165,975.12/249,035.04 = 87,070.32/x
  3. Step 3: Cross multiply
    165,975.12x = 249,035.04 × 87,070.32
  4. Step 4: Simplify right side
    165,975.12x = 21,683,560,624.01
  5. Step 5: Solve for x
    x = 21,683,560,624.01/165,975.12
  6. Step 6: Final answer
    x = 130,643.44

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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.