Home / 112,485.57-155,129.47-93,334.87

Finding the Fourth Proportional to 112,485.57, 155,129.47 and 93,334.87

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Solution

The fourth proportional to 112,485.57, 155,129.47 and 93,334.87 is: 128,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,485.57 : 155,129.47 = 93,334.87 : x
  2. Step 2: Convert to fraction form
    112,485.57/155,129.47 = 93,334.87/x
  3. Step 3: Cross multiply
    112,485.57x = 155,129.47 × 93,334.87
  4. Step 4: Simplify right side
    112,485.57x = 14,478,988,915.62
  5. Step 5: Solve for x
    x = 14,478,988,915.62/112,485.57
  6. Step 6: Final answer
    x = 128,718.63

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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.