Home / 145,870.20-218,805.30-134,465.40

Finding the Fourth Proportional to 145,870.20, 218,805.30 and 134,465.40

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Solution

The fourth proportional to 145,870.20, 218,805.30 and 134,465.40 is: 201,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,870.20 : 218,805.30 = 134,465.40 : x
  2. Step 2: Convert to fraction form
    145,870.20/218,805.30 = 134,465.40/x
  3. Step 3: Cross multiply
    145,870.20x = 218,805.30 × 134,465.40
  4. Step 4: Simplify right side
    145,870.20x = 29,421,742,186.62
  5. Step 5: Solve for x
    x = 29,421,742,186.62/145,870.20
  6. Step 6: Final answer
    x = 201,698.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.