Home / 142,325.40-213,488.10-102,959.40

Finding the Fourth Proportional to 142,325.40, 213,488.10 and 102,959.40

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Solution

The fourth proportional to 142,325.40, 213,488.10 and 102,959.40 is: 154,439.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,325.40 : 213,488.10 = 102,959.40 : x
  2. Step 2: Convert to fraction form
    142,325.40/213,488.10 = 102,959.40/x
  3. Step 3: Cross multiply
    142,325.40x = 213,488.10 × 102,959.40
  4. Step 4: Simplify right side
    142,325.40x = 21,980,606,683.14
  5. Step 5: Solve for x
    x = 21,980,606,683.14/142,325.40
  6. Step 6: Final answer
    x = 154,439.10

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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.