Home / 134,438.30-201,657.45-128,533.40

Finding the Fourth Proportional to 134,438.30, 201,657.45 and 128,533.40

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Solution

The fourth proportional to 134,438.30, 201,657.45 and 128,533.40 is: 192,800.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,438.30 : 201,657.45 = 128,533.40 : x
  2. Step 2: Convert to fraction form
    134,438.30/201,657.45 = 128,533.40/x
  3. Step 3: Cross multiply
    134,438.30x = 201,657.45 × 128,533.40
  4. Step 4: Simplify right side
    134,438.30x = 25,919,717,683.83
  5. Step 5: Solve for x
    x = 25,919,717,683.83/134,438.30
  6. Step 6: Final answer
    x = 192,800.10

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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.