Home / 125,130.40-172,615.58-84,830.46

Finding the Fourth Proportional to 125,130.40, 172,615.58 and 84,830.46

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Solution

The fourth proportional to 125,130.40, 172,615.58 and 84,830.46 is: 117,022.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,130.40 : 172,615.58 = 84,830.46 : x
  2. Step 2: Convert to fraction form
    125,130.40/172,615.58 = 84,830.46/x
  3. Step 3: Cross multiply
    125,130.40x = 172,615.58 × 84,830.46
  4. Step 4: Simplify right side
    125,130.40x = 14,643,059,054.57
  5. Step 5: Solve for x
    x = 14,643,059,054.57/125,130.40
  6. Step 6: Final answer
    x = 117,022.39

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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.