Home / 137,075.04-189,150.66-76,637.30

Finding the Fourth Proportional to 137,075.04, 189,150.66 and 76,637.30

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Solution

The fourth proportional to 137,075.04, 189,150.66 and 76,637.30 is: 105,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,075.04 : 189,150.66 = 76,637.30 : x
  2. Step 2: Convert to fraction form
    137,075.04/189,150.66 = 76,637.30/x
  3. Step 3: Cross multiply
    137,075.04x = 189,150.66 × 76,637.30
  4. Step 4: Simplify right side
    137,075.04x = 14,495,994,929.86
  5. Step 5: Solve for x
    x = 14,495,994,929.86/137,075.04
  6. Step 6: Final answer
    x = 105,752.26

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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.