Home / 142,214.04-196,254.21-77,683.32

Finding the Fourth Proportional to 142,214.04, 196,254.21 and 77,683.32

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Solution

The fourth proportional to 142,214.04, 196,254.21 and 77,683.32 is: 107,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,214.04 : 196,254.21 = 77,683.32 : x
  2. Step 2: Convert to fraction form
    142,214.04/196,254.21 = 77,683.32/x
  3. Step 3: Cross multiply
    142,214.04x = 196,254.21 × 77,683.32
  4. Step 4: Simplify right side
    142,214.04x = 15,245,678,596.78
  5. Step 5: Solve for x
    x = 15,245,678,596.78/142,214.04
  6. Step 6: Final answer
    x = 107,202.35

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1.5x scale

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.