Home / 249,988.81-375,055.83-90,061.70

Finding the Fourth Proportional to 249,988.81, 375,055.83 and 90,061.70

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Solution

The fourth proportional to 249,988.81, 375,055.83 and 90,061.70 is: 135,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,988.81 : 375,055.83 = 90,061.70 : x
  2. Step 2: Convert to fraction form
    249,988.81/375,055.83 = 90,061.70/x
  3. Step 3: Cross multiply
    249,988.81x = 375,055.83 × 90,061.70
  4. Step 4: Simplify right side
    249,988.81x = 33,778,163,769.43
  5. Step 5: Solve for x
    x = 33,778,163,769.43/249,988.81
  6. Step 6: Final answer
    x = 135,118.71

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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.