Home / 105,692.45-144,962.53-99,973.44

Finding the Fourth Proportional to 105,692.45, 144,962.53 and 99,973.44

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Solution

The fourth proportional to 105,692.45, 144,962.53 and 99,973.44 is: 137,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,692.45 : 144,962.53 = 99,973.44 : x
  2. Step 2: Convert to fraction form
    105,692.45/144,962.53 = 99,973.44/x
  3. Step 3: Cross multiply
    105,692.45x = 144,962.53 × 99,973.44
  4. Step 4: Simplify right side
    105,692.45x = 14,492,402,545.27
  5. Step 5: Solve for x
    x = 14,492,402,545.27/105,692.45
  6. Step 6: Final answer
    x = 137,118.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.