Home / 105,028.70-157,402.32-98,302.64

Finding the Fourth Proportional to 105,028.70, 157,402.32 and 98,302.64

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Solution

The fourth proportional to 105,028.70, 157,402.32 and 98,302.64 is: 147,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,028.70 : 157,402.32 = 98,302.64 : x
  2. Step 2: Convert to fraction form
    105,028.70/157,402.32 = 98,302.64/x
  3. Step 3: Cross multiply
    105,028.70x = 157,402.32 × 98,302.64
  4. Step 4: Simplify right side
    105,028.70x = 15,473,062,811.11
  5. Step 5: Solve for x
    x = 15,473,062,811.11/105,028.70
  6. Step 6: Final answer
    x = 147,322.24

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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.