Home / 142,528.68-213,732.81-42,703.02

Finding the Fourth Proportional to 142,528.68, 213,732.81 and 42,703.02

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Solution

The fourth proportional to 142,528.68, 213,732.81 and 42,703.02 is: 64,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,528.68 : 213,732.81 = 42,703.02 : x
  2. Step 2: Convert to fraction form
    142,528.68/213,732.81 = 42,703.02/x
  3. Step 3: Cross multiply
    142,528.68x = 213,732.81 × 42,703.02
  4. Step 4: Simplify right side
    142,528.68x = 9,127,036,460.09
  5. Step 5: Solve for x
    x = 9,127,036,460.09/142,528.68
  6. Step 6: Final answer
    x = 64,036.49

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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.