Home / 100,838.81-151,258.23-30,718.13

Finding the Fourth Proportional to 100,838.81, 151,258.23 and 30,718.13

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Solution

The fourth proportional to 100,838.81, 151,258.23 and 30,718.13 is: 46,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,838.81 : 151,258.23 = 30,718.13 : x
  2. Step 2: Convert to fraction form
    100,838.81/151,258.23 = 30,718.13/x
  3. Step 3: Cross multiply
    100,838.81x = 151,258.23 × 30,718.13
  4. Step 4: Simplify right side
    100,838.81x = 4,646,369,216.42
  5. Step 5: Solve for x
    x = 4,646,369,216.42/100,838.81
  6. Step 6: Final answer
    x = 46,077.19

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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.