Home / 125,133.92-172,688.31-76,075.46

Finding the Fourth Proportional to 125,133.92, 172,688.31 and 76,075.46

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Solution

The fourth proportional to 125,133.92, 172,688.31 and 76,075.46 is: 104,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,133.92 : 172,688.31 = 76,075.46 : x
  2. Step 2: Convert to fraction form
    125,133.92/172,688.31 = 76,075.46/x
  3. Step 3: Cross multiply
    125,133.92x = 172,688.31 × 76,075.46
  4. Step 4: Simplify right side
    125,133.92x = 13,137,341,756.43
  5. Step 5: Solve for x
    x = 13,137,341,756.43/125,133.92
  6. Step 6: Final answer
    x = 104,986.26

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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.