Home / 153,880.23-212,450.72-99,460.89

Finding the Fourth Proportional to 153,880.23, 212,450.72 and 99,460.89

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Solution

The fourth proportional to 153,880.23, 212,450.72 and 99,460.89 is: 137,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,880.23 : 212,450.72 = 99,460.89 : x
  2. Step 2: Convert to fraction form
    153,880.23/212,450.72 = 99,460.89/x
  3. Step 3: Cross multiply
    153,880.23x = 212,450.72 × 99,460.89
  4. Step 4: Simplify right side
    153,880.23x = 21,130,537,692.34
  5. Step 5: Solve for x
    x = 21,130,537,692.34/153,880.23
  6. Step 6: Final answer
    x = 137,318.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.