Home / 180,928.05-249,678.90-100,353.51

Finding the Fourth Proportional to 180,928.05, 249,678.90 and 100,353.51

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Solution

The fourth proportional to 180,928.05, 249,678.90 and 100,353.51 is: 138,486.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,928.05 : 249,678.90 = 100,353.51 : x
  2. Step 2: Convert to fraction form
    180,928.05/249,678.90 = 100,353.51/x
  3. Step 3: Cross multiply
    180,928.05x = 249,678.90 × 100,353.51
  4. Step 4: Simplify right side
    180,928.05x = 25,056,153,987.94
  5. Step 5: Solve for x
    x = 25,056,153,987.94/180,928.05
  6. Step 6: Final answer
    x = 138,486.84

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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.