Home / 142,927.74-197,245.53-86,328.18

Finding the Fourth Proportional to 142,927.74, 197,245.53 and 86,328.18

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Solution

The fourth proportional to 142,927.74, 197,245.53 and 86,328.18 is: 119,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,927.74 : 197,245.53 = 86,328.18 : x
  2. Step 2: Convert to fraction form
    142,927.74/197,245.53 = 86,328.18/x
  3. Step 3: Cross multiply
    142,927.74x = 197,245.53 × 86,328.18
  4. Step 4: Simplify right side
    142,927.74x = 17,027,847,618.04
  5. Step 5: Solve for x
    x = 17,027,847,618.04/142,927.74
  6. Step 6: Final answer
    x = 119,136.06

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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.