Home / 112,812.68-155,752.27-72,596.32

Finding the Fourth Proportional to 112,812.68, 155,752.27 and 72,596.32

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Solution

The fourth proportional to 112,812.68, 155,752.27 and 72,596.32 is: 100,228.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,812.68 : 155,752.27 = 72,596.32 : x
  2. Step 2: Convert to fraction form
    112,812.68/155,752.27 = 72,596.32/x
  3. Step 3: Cross multiply
    112,812.68x = 155,752.27 × 72,596.32
  4. Step 4: Simplify right side
    112,812.68x = 11,307,041,062.77
  5. Step 5: Solve for x
    x = 11,307,041,062.77/112,812.68
  6. Step 6: Final answer
    x = 100,228.46

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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.