Home / 142,284.81-213,424.78-42,445.29

Finding the Fourth Proportional to 142,284.81, 213,424.78 and 42,445.29

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Solution

The fourth proportional to 142,284.81, 213,424.78 and 42,445.29 is: 63,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,284.81 : 213,424.78 = 42,445.29 : x
  2. Step 2: Convert to fraction form
    142,284.81/213,424.78 = 42,445.29/x
  3. Step 3: Cross multiply
    142,284.81x = 213,424.78 × 42,445.29
  4. Step 4: Simplify right side
    142,284.81x = 9,058,876,680.29
  5. Step 5: Solve for x
    x = 9,058,876,680.29/142,284.81
  6. Step 6: Final answer
    x = 63,667.21

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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.