Home / 145,869.32-201,199.74-89,308.64

Finding the Fourth Proportional to 145,869.32, 201,199.74 and 89,308.64

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Solution

The fourth proportional to 145,869.32, 201,199.74 and 89,308.64 is: 123,184.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,869.32 : 201,199.74 = 89,308.64 : x
  2. Step 2: Convert to fraction form
    145,869.32/201,199.74 = 89,308.64/x
  3. Step 3: Cross multiply
    145,869.32x = 201,199.74 × 89,308.64
  4. Step 4: Simplify right side
    145,869.32x = 17,968,875,147.75
  5. Step 5: Solve for x
    x = 17,968,875,147.75/145,869.32
  6. Step 6: Final answer
    x = 123,184.75

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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.