Home / 102,961.64-142,058.93-70,705.95

Finding the Fourth Proportional to 102,961.64, 142,058.93 and 70,705.95

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Solution

The fourth proportional to 102,961.64, 142,058.93 and 70,705.95 is: 97,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,961.64 : 142,058.93 = 70,705.95 : x
  2. Step 2: Convert to fraction form
    102,961.64/142,058.93 = 70,705.95/x
  3. Step 3: Cross multiply
    102,961.64x = 142,058.93 × 70,705.95
  4. Step 4: Simplify right side
    102,961.64x = 10,044,411,248.10
  5. Step 5: Solve for x
    x = 10,044,411,248.10/102,961.64
  6. Step 6: Final answer
    x = 97,554.89

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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.