Home / 191,130.40-263,737.02-105,075.20

Finding the Fourth Proportional to 191,130.40, 263,737.02 and 105,075.20

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Solution

The fourth proportional to 191,130.40, 263,737.02 and 105,075.20 is: 144,991.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,130.40 : 263,737.02 = 105,075.20 : x
  2. Step 2: Convert to fraction form
    191,130.40/263,737.02 = 105,075.20/x
  3. Step 3: Cross multiply
    191,130.40x = 263,737.02 × 105,075.20
  4. Step 4: Simplify right side
    191,130.40x = 27,712,220,123.90
  5. Step 5: Solve for x
    x = 27,712,220,123.90/191,130.40
  6. Step 6: Final answer
    x = 144,991.17

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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.