Home / 180,864.81-249,606.23-100,300.05

Finding the Fourth Proportional to 180,864.81, 249,606.23 and 100,300.05

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Solution

The fourth proportional to 180,864.81, 249,606.23 and 100,300.05 is: 138,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,864.81 : 249,606.23 = 100,300.05 : x
  2. Step 2: Convert to fraction form
    180,864.81/249,606.23 = 100,300.05/x
  3. Step 3: Cross multiply
    180,864.81x = 249,606.23 × 100,300.05
  4. Step 4: Simplify right side
    180,864.81x = 25,035,516,847.81
  5. Step 5: Solve for x
    x = 25,035,516,847.81/180,864.81
  6. Step 6: Final answer
    x = 138,421.16

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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.