Home / 142,130.98-213,307.89-99,156.95

Finding the Fourth Proportional to 142,130.98, 213,307.89 and 99,156.95

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Solution

The fourth proportional to 142,130.98, 213,307.89 and 99,156.95 is: 148,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,130.98 : 213,307.89 = 99,156.95 : x
  2. Step 2: Convert to fraction form
    142,130.98/213,307.89 = 99,156.95/x
  3. Step 3: Cross multiply
    142,130.98x = 213,307.89 × 99,156.95
  4. Step 4: Simplify right side
    142,130.98x = 21,150,958,823.81
  5. Step 5: Solve for x
    x = 21,150,958,823.81/142,130.98
  6. Step 6: Final answer
    x = 148,813.15

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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.