Home / 131,477.20-197,215.80-98,429.20

Finding the Fourth Proportional to 131,477.20, 197,215.80 and 98,429.20

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Solution

The fourth proportional to 131,477.20, 197,215.80 and 98,429.20 is: 147,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,477.20 : 197,215.80 = 98,429.20 : x
  2. Step 2: Convert to fraction form
    131,477.20/197,215.80 = 98,429.20/x
  3. Step 3: Cross multiply
    131,477.20x = 197,215.80 × 98,429.20
  4. Step 4: Simplify right side
    131,477.20x = 19,411,793,421.36
  5. Step 5: Solve for x
    x = 19,411,793,421.36/131,477.20
  6. Step 6: Final answer
    x = 147,643.80

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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.