Home / 142,307.05-213,460.58-53,580.46

Finding the Fourth Proportional to 142,307.05, 213,460.58 and 53,580.46

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Solution

The fourth proportional to 142,307.05, 213,460.58 and 53,580.46 is: 80,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,307.05 : 213,460.58 = 53,580.46 : x
  2. Step 2: Convert to fraction form
    142,307.05/213,460.58 = 53,580.46/x
  3. Step 3: Cross multiply
    142,307.05x = 213,460.58 × 53,580.46
  4. Step 4: Simplify right side
    142,307.05x = 11,437,316,068.27
  5. Step 5: Solve for x
    x = 11,437,316,068.27/142,307.05
  6. Step 6: Final answer
    x = 80,370.69

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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.