Home / 153,145.08-211,280.40-112,954.50

Finding the Fourth Proportional to 153,145.08, 211,280.40 and 112,954.50

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Solution

The fourth proportional to 153,145.08, 211,280.40 and 112,954.50 is: 155,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,145.08 : 211,280.40 = 112,954.50 : x
  2. Step 2: Convert to fraction form
    153,145.08/211,280.40 = 112,954.50/x
  3. Step 3: Cross multiply
    153,145.08x = 211,280.40 × 112,954.50
  4. Step 4: Simplify right side
    153,145.08x = 23,865,071,941.80
  5. Step 5: Solve for x
    x = 23,865,071,941.80/153,145.08
  6. Step 6: Final answer
    x = 155,833.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.