Home / 112,528.44-155,320.74-64,800.81

Finding the Fourth Proportional to 112,528.44, 155,320.74 and 64,800.81

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Solution

The fourth proportional to 112,528.44, 155,320.74 and 64,800.81 is: 89,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,528.44 : 155,320.74 = 64,800.81 : x
  2. Step 2: Convert to fraction form
    112,528.44/155,320.74 = 64,800.81/x
  3. Step 3: Cross multiply
    112,528.44x = 155,320.74 × 64,800.81
  4. Step 4: Simplify right side
    112,528.44x = 10,064,909,761.80
  5. Step 5: Solve for x
    x = 10,064,909,761.80/112,528.44
  6. Step 6: Final answer
    x = 89,443.25

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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.