Home / 105,250.06-145,244.91-57,503.40

Finding the Fourth Proportional to 105,250.06, 145,244.91 and 57,503.40

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Solution

The fourth proportional to 105,250.06, 145,244.91 and 57,503.40 is: 79,354.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,250.06 : 145,244.91 = 57,503.40 : x
  2. Step 2: Convert to fraction form
    105,250.06/145,244.91 = 57,503.40/x
  3. Step 3: Cross multiply
    105,250.06x = 145,244.91 × 57,503.40
  4. Step 4: Simplify right side
    105,250.06x = 8,352,076,157.69
  5. Step 5: Solve for x
    x = 8,352,076,157.69/105,250.06
  6. Step 6: Final answer
    x = 79,354.60

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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.