Home / 154,030.04-212,559.10-86,047.98

Finding the Fourth Proportional to 154,030.04, 212,559.10 and 86,047.98

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Solution

The fourth proportional to 154,030.04, 212,559.10 and 86,047.98 is: 118,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,030.04 : 212,559.10 = 86,047.98 : x
  2. Step 2: Convert to fraction form
    154,030.04/212,559.10 = 86,047.98/x
  3. Step 3: Cross multiply
    154,030.04x = 212,559.10 × 86,047.98
  4. Step 4: Simplify right side
    154,030.04x = 18,290,281,185.62
  5. Step 5: Solve for x
    x = 18,290,281,185.62/154,030.04
  6. Step 6: Final answer
    x = 118,744.90

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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.