Home / 74,420.23-111,148.65-67,386.19

Finding the Fourth Proportional to 74,420.23, 111,148.65 and 67,386.19

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Solution

The fourth proportional to 74,420.23, 111,148.65 and 67,386.19 is: 100,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.23 : 111,148.65 = 67,386.19 : x
  2. Step 2: Convert to fraction form
    74,420.23/111,148.65 = 67,386.19/x
  3. Step 3: Cross multiply
    74,420.23x = 111,148.65 × 67,386.19
  4. Step 4: Simplify right side
    74,420.23x = 7,489,884,047.14
  5. Step 5: Solve for x
    x = 7,489,884,047.14/74,420.23
  6. Step 6: Final answer
    x = 100,643.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.