Home / 105,290.48-157,926.85-45,316.53

Finding the Fourth Proportional to 105,290.48, 157,926.85 and 45,316.53

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Solution

The fourth proportional to 105,290.48, 157,926.85 and 45,316.53 is: 67,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,290.48 : 157,926.85 = 45,316.53 : x
  2. Step 2: Convert to fraction form
    105,290.48/157,926.85 = 45,316.53/x
  3. Step 3: Cross multiply
    105,290.48x = 157,926.85 × 45,316.53
  4. Step 4: Simplify right side
    105,290.48x = 7,156,697,579.97
  5. Step 5: Solve for x
    x = 7,156,697,579.97/105,290.48
  6. Step 6: Final answer
    x = 67,970.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.