Home / 112,885.08-155,725.02-72,068.28

Finding the Fourth Proportional to 112,885.08, 155,725.02 and 72,068.28

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Solution

The fourth proportional to 112,885.08, 155,725.02 and 72,068.28 is: 99,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,885.08 : 155,725.02 = 72,068.28 : x
  2. Step 2: Convert to fraction form
    112,885.08/155,725.02 = 72,068.28/x
  3. Step 3: Cross multiply
    112,885.08x = 155,725.02 × 72,068.28
  4. Step 4: Simplify right side
    112,885.08x = 11,222,834,344.37
  5. Step 5: Solve for x
    x = 11,222,834,344.37/112,885.08
  6. Step 6: Final answer
    x = 99,418.23

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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.