Home / 121,459.12-183,113.56-112,897.02

Finding the Fourth Proportional to 121,459.12, 183,113.56 and 112,897.02

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Solution

The fourth proportional to 121,459.12, 183,113.56 and 112,897.02 is: 170,205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,459.12 : 183,113.56 = 112,897.02 : x
  2. Step 2: Convert to fraction form
    121,459.12/183,113.56 = 112,897.02/x
  3. Step 3: Cross multiply
    121,459.12x = 183,113.56 × 112,897.02
  4. Step 4: Simplify right side
    121,459.12x = 20,672,975,245.59
  5. Step 5: Solve for x
    x = 20,672,975,245.59/121,459.12
  6. Step 6: Final answer
    x = 170,205.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.