Home / 105,736.04-145,915.44-60,428.08

Finding the Fourth Proportional to 105,736.04, 145,915.44 and 60,428.08

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Solution

The fourth proportional to 105,736.04, 145,915.44 and 60,428.08 is: 83,390.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,736.04 : 145,915.44 = 60,428.08 : x
  2. Step 2: Convert to fraction form
    105,736.04/145,915.44 = 60,428.08/x
  3. Step 3: Cross multiply
    105,736.04x = 145,915.44 × 60,428.08
  4. Step 4: Simplify right side
    105,736.04x = 8,817,390,063.95
  5. Step 5: Solve for x
    x = 8,817,390,063.95/105,736.04
  6. Step 6: Final answer
    x = 83,390.58

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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.