Home / 112,130.64-154,741.52-61,831.44

Finding the Fourth Proportional to 112,130.64, 154,741.52 and 61,831.44

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Solution

The fourth proportional to 112,130.64, 154,741.52 and 61,831.44 is: 85,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,130.64 : 154,741.52 = 61,831.44 : x
  2. Step 2: Convert to fraction form
    112,130.64/154,741.52 = 61,831.44/x
  3. Step 3: Cross multiply
    112,130.64x = 154,741.52 × 61,831.44
  4. Step 4: Simplify right side
    112,130.64x = 9,567,891,009.39
  5. Step 5: Solve for x
    x = 9,567,891,009.39/112,130.64
  6. Step 6: Final answer
    x = 85,328.07

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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.