Home / 142,072.94-212,939.95-66,068.89

Finding the Fourth Proportional to 142,072.94, 212,939.95 and 66,068.89

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Solution

The fourth proportional to 142,072.94, 212,939.95 and 66,068.89 is: 99,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,072.94 : 212,939.95 = 66,068.89 : x
  2. Step 2: Convert to fraction form
    142,072.94/212,939.95 = 66,068.89/x
  3. Step 3: Cross multiply
    142,072.94x = 212,939.95 × 66,068.89
  4. Step 4: Simplify right side
    142,072.94x = 14,068,704,927.11
  5. Step 5: Solve for x
    x = 14,068,704,927.11/142,072.94
  6. Step 6: Final answer
    x = 99,024.52

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1.5x scale

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.